Quality is the one and the primary critical factors in the success of construct io n companies. Now a day Quality in construction is questioned and Projects were not performed as stated quality standard, agreement, design and technical specificatio n s. So, i n this competitive and challenging construction environment more researches on developing effective Quality Management System s implementation approach in Construction Companies are needed. As a result, the main objective of this research is to investigate quality management systems implementation trends in Amhara Region and propose a suitable implementation intervention for construction companies in the Region. To carry out this study , several literatures were reviewed and briefly organized in to sub topics under the literature review part. A questionnaire was designed based on the literature review and 65 questionnaires were distributed to 19 selected construction companies and 56 (86.2%) questioners was returned. The data also collected by conducted unstructured i nterview and direct observations of company profile to get additional information which was not addressed by the questionnaire. The collected data was analyzed by using Statistical Package for Social Sciences Software , Analysis of variance, Relative importance index and Microsoft excel and the validit y test is verified using Cronbach Alpha test and Pearson correlation method. The research both qualitative and quantitative and to analyze the qualitative data content analysis were conducted. Finally , this study result, the practices of ISO 9001:2008 based qualit y management system in construction companies in the region is not effective and lack of awareness is the major challenge to implement quality management systems. This research recommended that top managers in the construction companies take the lead to implement quality management systems in their company effectively. Key Words: Quality management system , ISO 9001:2008 QMS principle s , Construction Company, customer satisfaction, ISO certification and continuo us improvement